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Re: perl question

got it, thanx.

----- Original Message -----
From: <shimpei@example.com>
To: <tlug@example.com>
Sent: Wednesday, July 25, 2001 6:49 PM
Subject: Re: perl question


> > I've got this Perl code
> >
> >    print qq~
> > <$dtd>
> > <html>
> >
> > <head>
> > blah blah
> > </html>
> > ~;
> >
> >
> > Now I understand what this does, it just spits out (in this case) html
tags
> > to stdout. What I don't understand is why.
>
> "qq" is an operator that says "the next character, whatever it may be, is
to be
> treated as a double-quote". So everything between ~ immediately after the
> qq and the next occurance of ~ is treated as a double-quoted string.
> Read perlop(1) and skip to the "Quote and Quote-like Operators" section
> for detail. It's useful when you have to embed double-quotes and other
meta-
> characters into your string. For example:
>
> print qq/And God said, "Let there be light!"/;
>
> is completely equivalent to:
>
> print "And God said, \"Let there be light!\"";
>
> but the former is more readable once you understand what the qq operator
does.
> In case you're wondering, there is no reason why the writer of that code
> couldn't have just used double-quotes instead of qq~~, since the text
> being quoted doesn't have any double-quotes. It's grammatically correct,
but
> needlessly obscure.
>
> > The Camel book gives example of here documents using this format
> > print <<EOF
> > blah blah
> > EOF;
>
> They both work. The qq operator has the benefit of not screwing up your
> indentation, while the << syntax frees you from having to look for that
> one special character that isn't used in the text you're quoting.
Remember,
> the Perl mantra is: There Is More Than One Way To Do It. (I can almost
hear
> the python lovers in the audience snickering over that remark...)
>
> > Is this qq thing something new???
>
> Well, it's been there since at least 1996....
>
>
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